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Arvind Kumar

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Simple notes of strength & mechanics of materials.It almost cover important topics chapter wise

Chapter :1

Mechanical properties of materials: Ductility, malleability, hardness, toughness, fatigue, creep; behavior

of materials under tension, compression, bending, shear; ductile and brittle materials, failure of MS and

CI in tension and torsion

Stress and strain: stresses in members of a structure, axial loading, normal stress, shear stress, bearing

stress, analysis of simple structures, stepped rods, members in series and parallel: stress strain diagram,

Hooke’s law, modulus of elasticity, elastic and plastic behavior of materials, deformation under axial

loading, statically indeterminate problems, stress due to temperature, Poisson’s ratio, Bulk modulus, shear

strain, relation among elastic constants, residual stress, fiber reinforced composite materials, strain energy

under axial loads and stresses due to impact of falling weights.

Chapter :2

Transformation of stress and strain, principal stresses, normal and shear stress, Mohr’s circle and its

application to two and three dimensional analysis, ductile and brittle failures, transmission shaft under

combined bending and torsion; stresses in thin walled pressure vessel

Chapter :3

Bending: pure bending, symmetric member, deformation and stress, bending of composite sections,

eccentric axial loading, shear force and BM diagram, relationship among load, shear and BM, shear

stresses in beams, strain energy in bending, deflection of beams, equation of elastic curve, Macaulay’s

method and Area moment method for deflection of beams.

Chapter :4

Torsion in shafts: stresses in a shaft, deformation in circular shaft, angle of twist, stepped-hollow, thin

walled-hollow transmission shafts Leaf springs; helical springs, open and closed coil, stress in spring

wire, deflection of helical spring, springs in series and parallel.

Chapter :5

Theories of failures: maximum normal stress & shear stress theory; maximum normal and shear strain

energy theory; maximum distortion energy theory; application of theories to different materials and

loading conditions Columns

Strength of materials

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